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Posted by Ray on October 10, 2006, 4:43 pm
Thanks Ed -- That's reassuring. I also looked at the contract more closely
and find that the piping is under warranty for 5 years.
The guy who did this installation is not just a plumber, but a leading
heating and air conditioning company. I would think that he had
state-of-the-art equipment.
He did tell me that after the contract was signed but before it was
installed there was a sharp increase in copper prices and that hhe would
lose money.
We are operating at 5 psi and have been told that we might go lower.
-- Ray
>
>> Thanks Mike -- Our system is steam.
>>
>> Why do you suppose a reputable company of long standing wouldn't use the
>> standard?
>>
>> Or perhaps the standard may have changed?
>>
>> I guess if they installed a system which is truly incorrect and fails
>> fairly quickly they might be open to a lawsuit.
>>
>> -- Ray
>
> Many years ago, I used to work for a company that built heating coils for
> both steam and hot water heating, mostly industrial and commercial
> applications. We made them from copper. Only if the pressure was going
> to exceed 15 psi, we'd use cupro-nickel or brass. You are probably
> operating at less than 5 psi, maybe even less than that.
>
> One reason he may have done it that way is the equipment needed to cut and
> thread 6" steel pipe. Most plumbers do not have it. Copper is much
> easier to work with in a residential setting. Large pipes have to be
> welded in place, a very expensive process. Many years ago, conditions
> were different, steel was cheaper steel pipe was common even for water
> supply. Live has changed.
>
> As for the pipes lasting two years, I recently had a couple of coils
> repaired in a building that I manage. They were 30 years old and with a
> couple of joints re-soldered, back in operating condition. Tell the old
> fart to educate himself a bit more and mind his own business.
>
> I don't think you have a problem.
>
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